Re: [PATCH v7 15/15] arm64: dts: qcom: sdm845-lg-{judyln, judyp}: Reference memory region in fb
From: Konrad Dybcio
Date: Wed Apr 01 2026 - 06:25:48 EST
On 4/1/26 5:23 AM, Paul Sajna wrote:
> To prevent duplicating the framebuffer address and size point out the
> existing framebuffer memory region instead of specifying the address
> manually.
>
> Signed-off-by: Paul Sajna <sajattack@xxxxxxxxxxxxxxxx>
> ---
> arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi | 3 +--
> arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts | 2 +-
> arch/arm64/boot/dts/qcom/sdm845-lg-judyp.dts | 2 +-
> 3 files changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi
> index 85dc4468b6c4..86cf4eb44084 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi
> @@ -98,8 +98,7 @@ spss_mem: memory@99000000 {
> no-map;
> };
>
> - /* Framebuffer region */
> - memory@9d400000 {
> + framebuffer_mem: memory@9d400000 {
> reg = <0x0 0x9d400000 0x0 0x2400000>;
> no-map;
> };
> diff --git a/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts b/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts
> index adf41aa0146a..83e392907244 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts
> +++ b/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts
> @@ -16,7 +16,7 @@ / {
> chosen {
> framebuffer@9d400000 {
> compatible = "simple-framebuffer";
> - reg = <0x0 0x9d400000 0x0 (1440 * 3120 * 4)>;
> + memory-region = <&framebuffer_mem>;
Because the node no longer has a 'reg' property, it must also be stripped
of its unit address
Konrad